30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August LCTPC/LPWP-8th phonemeeting –Date 30 August 2006 –Time 7:00 west coast 10:00 east coast 16:00 central Europe 23:00 Japan – To join, Phone code 52872#

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August Agenda for 8th WP phonemeeting (in future the meetings will be managed via AGENDA -1.News Formation of the LCTPC/LP Collaboration WWS-R&D-panel tracking review at Beijing PIRE (Dan) -2.WP meeting Gem gating (RS) Gem endplate for the LP (Akira) Fieldcage (Ties) LP endplate/electronics discussion (Leif, Dan) -3.Future meetings -Paris endcap meeting September -Eudetmeeting at MPI October -Valencia European WS 6-10 November -Beijing Asian WS February 3-7 February -4.AOB

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -1a.Formation of the LCTPC/LP collaboration  On the next foil are the groups who have replied with the name of their CB representative up to now: marked by  The non-checked groups have now been contacted directly. Status and lists of names are on the following foils…

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August LCTPC/LP Groups (27 August 06) Americas  Carleton   Montreal   Victoria   Cornell   Indiana   LBNL  MIT  Purdue  YaleEurope LAL Orsay  IPN Orsay  CEA Saclay Aachen  Bonn  DESY  UHamburg  Freiburg  Karlsruhe MPI-Munich  Rostock  Siegen  NIKHEF  UMM Krakow Bucharest Novosibirsk  PNPI StPetersburg  Lund  CERN  Asia Tsinghua  CDC: Hiroshima  KEK  Kinki U  Saga  Kogakuin  Tokyo UA&T  U Tokyo  U Tsukuba  Minadano SU-IIT  …Other groups interested?

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August Formation of the LCTPC/LP collaboration The proposal is to have: 1)Three coordinators, one chosen by each region. These spokespersons (SP) coordinate the work of the following two boards: 2)The collaboration board (CB), consisting of one representative from each group or set of groups (the group leader, principle investigator or other chosen member). Each CB member looks after the resources for its group(s) (money and people). 3)The technical board (TB), consisting of the existing workpackage (WP) conveners. The TB will ensure the technical integrity of their WP and compatibility with other WPs while maintaining close contact with the collaboration. This structure now exists. 1) We are three interim coordinators and are to be replaced by chosen ones in the course of this formation phase. 2) The CB is (almost) complete. 3) The workpackages and WP conveners were identified during the first half of this year. The names of CB and TB members are listed in the next slide.

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August The CB members are: ================== --Americas- Carleton: Madhu Dixit Montreal: Jean-Pierre Martin Victoria: Dean Karlen Cornell: Dan Peterson Indiana: Rick Van Kooten LBNL: Mike Ronan --Asia- Tsinghua: Yuanning Gao For the following CDC groups: Akira Sugiyama Hiroshima KEK Kinki Saga Kogakuin Tokyo U A&T U Tokyo Tsukuba Mindanao

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August Europe- Eudet contact: Joachim Mnich LAL Orsay/IPN Orsay: Vincent Lepeltier Aachen: Stefan Roth Bonn: Klaus Desch Desy/UHamburg: Ties Behnke Eudet: Joachim Mnich Freiburg: Andreas Bamberger MPI-Munich: Ariane Frey Rostock: Henning Schroeder Siegen: Ivor Fleck Nikhef: Jan Timmermans Novosibirsk: Alexei Buzulutskov St.Peterburg: Anatoliy Krivchitch Lund: Leif Jonsson CERN: Michael Hauschild (deputy: Lucie Linsen) --Groups with Observer status- TU Munich: Bernhard Ketzer Purdue: Ian Shipsey --Replies still missing from: MIT Yale Mindanao CEA Saclay Karlsruhe Krakow Bucharest

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August The TB members are: ================== 1) Workpackage Mechanics Ron Settles a) LP design (incl. endplate structure) Dan Peterson b) Fieldcage, laser Ties Behnke c) GEM panels for endplate Akira Sugiyama d) Micromegas panels for endplate Paul Colas e) Pixel panels for endplate Jan Timmermans f) Resistive foil for endplate Madhu Dixit 2) Workpackage Electronics Leif Jonsson a)"Standard" RO/DAQ sytem for LP Leif Jonsson+Postdoc b) CMOS RO electronics Harry van der Graaf c) Electronics for LCTPC Luciano Musa 3) Workpackage Software Peter Wienemann a) LP SW, simul./reconstr.framework Peter Wienemann b) TPC simulation, backgrounds Stefan Roth c) Full detector simulation Keisuke Fujii 4) Workpackage Calibration Dean Karlen a) Field map Lucie Linssen b) Alignment Takeshi Matsuda c) Distortion correction Dean Karlen d) Radiation hardness of materials Anatoliy Krivchitch e) LP Gas/HV Eudet Postdoc

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August We shall be sending an this week on the next steps for the formation of the LCTPC/LP collaboration… AGENDA -1a.Formation of the LCTPC/LP collaboration

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -1b.Tracking review at Beijing: As announced at the VLSW06, the WWS-R&D Panel is starting regular reviews of the different R&D projects for the LC detector. Chris Damerell has sent the that they want to start with tracking (Si and TPC) at the Asian LC meeting in Beijing (3-7 February 2007). The modus operandi is still being discussed…

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -1c.PIRE As announced by Dan, this is the “Partnerships for International Research and Education” program at Cornell. More details from Dan…

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -2a.Next iteration on the goals for LCTPC/LP. For your info: we (Fabio Sauli, Madhu Dixit, Martin Killenberg, Akira Sugiyama, RS, a.o.) have started on thinking about ways to test Gem gating with (a) small prototype(s). Martin thinks we might have a scheme that works, but it has to be tried out. If you are interested or have suggestions, let us know…

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -2b. Gem endplate (a.o.) for the LP Akira (WP convener for the LP Gem endplate) sent a mail asking which groups want to participate in the work of making/testing the Gem endplate(s) for the LP. The division of work among groups will be a part of the general organization of the LCTPC/LP collaboration which has to be done within the next few weeks. For the Gem-endplate question, more from Akira…

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -2c. Fieldcage for the LP

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -2c.LP endplate discussion Reminder: most urgent point for LP is to design layout of endplate and finalize ~12/2006 One picture from the note Leif described at the last meeting, see and two pictures of Dan’s iteration of the last meeting follow in the next three foils…

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -3.Future meetings There are (in addition to bi-weekly phonemeetings): -Paris Endcap meeting organized by Paul/Akira (12-15 September 2006): announcements already sent to the LCTPC groups, see -Eudet annual meeting MPI-Munich (18-20 October 2006) with website: -European LC workshop Valencia (6-10 November 2006), see -Asian LC workshop Beijing (4-7 February 2007) Website:

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August AGENDA -4.AOB

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August Back up slides, for reference Back up slides, for reference

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August Akira Sugiyama – GLD DOD

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August RS study - LDC DOD - together with Joel Pouthas Philippe Rosier (IPN Orsay)

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August Aleph Endplate

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August Some features Zigzag structure prevented loss of tracks > θ~22° Sectors mounted from inside using a “handling tool” to minimize the dead space between sectors. This straight-forward operation which was performed at least 30 times during the lifetime of Aleph. Alu sandwich structure stiff, lightweight to - contain 7mb overpressure - provide forced-air thermal insulation between electronics and TPC volume Water cooling of 1kW electronics/side in addition - 22K channels per side Combination water/air cooling blocked all heat to TPC Overall thickness ~ 25%Xo (average) w/o cables Bending of endplate -20 micrometers due to 7mb overpressure - 5 micrometers due to wire tension

30/08/2006Ron Settles MPI-Munich/DESY 8th WP phonemeeting 30 August R&D Planning 1) Demonstration phase –Continue work with small prototypes on mapping out parameter space, understanding resolution, etc, to prove feasibility of an MPGD TPC. For CMOS/Si-based ideas this will include a basic proof-of-principle. 2) Consolidation phase –Build and operate the LP, large prototype, (Ø ≥ 75cm, drift ≥ 100cm), with EUDET infrastructure as pedestal, to test manufacturing techniques for MPGD endplates, fieldcage and electronics. Design is starting---building and testing will take another ~ 3 years. 3) Design phase –After phase 2, the decision as to which endplate technology to use for the LC TPC would be taken and final design started.